ROI Calculator
Free roi calculator. Get instant results — no signup, no account. Plan and compare with confidence.
Use the ROI Calculator below.
Calculate return on investment (ROI) as a percentage. Enter initial investment and current or final value. Free ROI calculator for USA and worldwide.
How to use ROI Calculator
Enter investment
Input amount invested (cost).
Enter return
Input current or final value.
View ROI
See ROI percentage and dollar gain or loss.
Features
- Instant results — no waiting or signup.
- Free to use — no hidden fees.
- No login or account required.
- Works on all devices — desktop, tablet, and mobile.
- Your data stays private — we do not store your inputs.
Why use this calculator
- Plan your finances with accurate estimates.
- Compare scenarios in seconds.
- Make informed decisions before you borrow or invest.
Supported browsers and devices
- All modern browsers (Chrome, Firefox, Safari, Edge).
- Mobile-friendly — use on phone or tablet.
- No app download — runs in your browser.
Frequently asked questions
Complete guide to ROI Calculator
What is ROI?
ROI (return on investment) is the percentage gain or loss on an investment relative to the amount invested. It is calculated as (Current or final value minus initial investment) divided by initial investment, times 100. A positive ROI means a profit; a negative ROI means a loss. ROI is one of the most common metrics to compare investments or business projects.
This ROI calculator requires only your initial investment and the current or final value. It gives you the ROI percentage and the dollar profit or loss. It does not account for the time period — for annualized returns over multiple years, use the CAGR calculator.
When to use ROI
- Comparing one-time investments or projects.
- Measuring performance of a stock, mutual fund, or asset after a period.
- Evaluating business decisions (e.g. marketing spend vs revenue).
- Quick comparison when the time period is the same for all options.
Limitations of ROI
ROI does not consider the length of time the money was invested. A 50% return in one year is much better than 50% in 10 years. For multi-year returns, use CAGR (compound annual growth rate) to get an annualized return. Also, ROI does not include taxes, fees, or inflation.
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Disclaimer
Our financial calculators are for informational and educational purposes only. Results are estimates based on the inputs you provide and standard formulas. They are not financial, tax, or legal advice. We do not store or share the numbers you enter.